package com.google.GFS;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.util.List;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.HttpConnectionParams;
import org.apache.http.params.HttpParams;
import org.apache.http.protocol.HTTP;
import org.json.JSONException;
import org.json.JSONObject;

import android.util.Log;


public class JSONParser {
	    static InputStream is = null;
	    static JSONObject jObj = null;
	    static String json = "";
	    private int timeoutConnection = 3000;  
	    private int timeoutSocket = 5000;  
	    // constructor
	    public JSONParser() {
	    }
	    // function get json from url
	    // by making HTTP POST 
	    public JSONObject makeHttpRequest(String url, String method,
	            List<NameValuePair> params) {

	        // Making HTTP request
	        try {    
	                // request method is POST
	                // defaultHttpClient
	        	    HttpParams  httpParameters = new BasicHttpParams();
	        	    HttpConnectionParams.setConnectionTimeout(httpParameters, timeoutConnection);
	        	    HttpConnectionParams.setSoTimeout(httpParameters, timeoutSocket);
	        	    HttpClient  httpClient = new DefaultHttpClient(httpParameters);
	                HttpPost httpPost = new HttpPost(url);
	                httpPost.setEntity(new UrlEncodedFormEntity(params,HTTP.UTF_8));
	                HttpResponse httpResponse = httpClient.execute(httpPost);
	                HttpEntity httpEntity = httpResponse.getEntity();
	                is = httpEntity.getContent();                
	            
	        } catch (UnsupportedEncodingException e) {
	            e.printStackTrace();
	        } catch (ClientProtocolException e) {
	            e.printStackTrace();
	        } catch (IOException e) {
	            e.printStackTrace();
	        }
	        try {
	            BufferedReader reader = new BufferedReader(new InputStreamReader(
	                    is, "UTF-8"));
	            StringBuilder sb = new StringBuilder();
	            String line = null;
	            while ((line = reader.readLine()) != null) {
	                sb.append(line + "\n");
	            }
	            is.close();
	            json = sb.toString();
	        } catch (Exception e) {
	            Log.e("Buffer Error", "Error converting result " + e.toString());
	            Log.d("json", json.toString());
	        }

	        // try parse the string to a JSON object
	        try {
	            jObj = new JSONObject(json);
	        } catch (JSONException e) {
	            Log.e("JSON Parser", "Error parsing data " + e.toString());
	        }

	        // return JSON String
	        return jObj;

	    }

}
